Hello everyone!

I know that this topic was discussed hundreds of times, and I read everything thoroughly, but still can't manage to make execution even once. 

I play with crusader at PS4 pro, controls are standard, execution chance is max. I use no items giving chance for bleeding or poisoning, only simple melee attacks but still execution never happened, I was never able to see enemy with only 1 HP remaining. I cannot execute even hellbrutes, although it is said in the internet that they are executed automatically when the last hit is made with melee weapon.

Could anyone advise me what to do? Is it some kind of bug at PS4 which requires patch (like with Angel of Death) or am I missing something so obvious that nobody even mentioned it in topics regarding execution? 

Thanks!